57 lines
2.1 KiB
C++
57 lines
2.1 KiB
C++
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#include <gtk/gtk.h>
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GtkWidget *background;
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void dialog_response(GtkWidget *widget,int response){
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const gchar *filename;
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GFile *file;
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file=gtk_file_chooser_get_file(GTK_FILE_CHOOSER(widget));
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filename=g_file_get_path(file);
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//g_print("%s\n",filename);
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if(response==GTK_RESPONSE_OK){
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GdkPixbuf *pixbuf=gdk_pixbuf_new_from_file(filename,NULL);
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GdkPixbuf *sized=gdk_pixbuf_scale_simple(pixbuf,480,360,GDK_INTERP_BILINEAR);
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gtk_image_set_from_pixbuf(GTK_IMAGE(background),sized);
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}
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gtk_window_destroy(GTK_WINDOW(widget));
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}
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void change_background(GtkWidget *widget,GtkWindow *parent){
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GtkWidget *dialog;
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GtkFileChooserAction action=GTK_FILE_CHOOSER_ACTION_OPEN;
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dialog=gtk_file_chooser_dialog_new("Choose a image",parent,action,
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"OK",GTK_RESPONSE_OK,"Cancel",GTK_RESPONSE_CANCEL,NULL);
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gtk_widget_show(dialog);
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g_signal_connect(dialog,"response",G_CALLBACK(dialog_response),NULL);
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}
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static void gtkmain(GtkApplication *app,gpointer user_data){
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GtkWidget *window,*fixed,*button;
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//Window initalize
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window=gtk_application_window_new(app);
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gtk_window_set_default_size(GTK_WINDOW(window),480,360);
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gtk_window_set_title(GTK_WINDOW(window),"Gtk4 test");
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//GtkFixed
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fixed=gtk_fixed_new();
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//Image as background
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background=gtk_image_new();
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gtk_widget_set_size_request(background,480,360);
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gtk_fixed_put(GTK_FIXED(fixed),background,0,0);
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//GtkButton
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button=gtk_button_new_with_label("Change Background");
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gtk_widget_set_size_request(button,200,50);
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gtk_fixed_put(GTK_FIXED(fixed),button,140,240);
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g_signal_connect(button,"clicked",G_CALLBACK(change_background),window);
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//Show all widget
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gtk_window_set_child(GTK_WINDOW(window),fixed);
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gtk_widget_show(window);
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}
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int main(int argc,char *argv[]){
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int status;
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GtkApplication *app=gtk_application_new("com.daleclack.gtk4.test",G_APPLICATION_FLAGS_NONE);
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g_signal_connect(app,"activate",G_CALLBACK(gtkmain),NULL);
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status=g_application_run(G_APPLICATION(app),argc,argv);
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g_object_unref(app);
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return status;
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}
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